Phase-field modelling of ductile fracture: a variational gradient-extended plasticity-damage theory and its micromorphic regularization

A Variational Framework for Gradient-Extended Dissipative Continua. Application to Damage Mechanics, Fracture, and Plasticity

Nonlinear regularization operators as derived from the micromorphic approach to gradient elasticity, viscoplasticity and damage.

The construction of regularization operators presented in this work is based on the introduction of strain or damage micromorphic degrees of freedom in addition to the displacement vector and of their gradients into the Helmholtz free energy function of the constitutive material model. The combination of a new balance equation for generalized stresses and of the micromorphic constitutive equati...

Variational Approach to Dynamic Brittle Fracture via Gradient Damage Models

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Three-dimensional fracture analysis of CT specimens with a ductile damage model based on endochronic plasticity theory

For many fracture problems of practical engineering importance, the three-dimensional effects are significant and a three-dimensional analysis for the problems is thus required. In this paper, an endochronic theory coupled with anisotropic damage is first established, which is actually an elasto-plastic damage theory coupled with isotropic-nonlinear kinematic hardening. The ductile damage evolu...

Numerical modelling of ductile fracture in blanking

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